H02M 1/14
Arrangements for reducing ripples from dc input or output
Official title: Arrangements for reducing ripples from DC input or output
H02M1/14 (Arrangements for reducing ripples from dc input or output) appears on 2,441 US grants and 2,803 published applications in this corpus.
Search patents in H02M- Granted patents
- 2,441
- Published applications
- 2,803
- Assignees
- 1,016
- Inventors
- 5,479
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 1 |
| 2002 | 14 | 22 |
| 2003 | 17 | 15 |
| 2004 | 14 | 15 |
| 2005 | 11 | 23 |
| 2006 | 16 | 18 |
| 2007 | 16 | 23 |
| 2008 | 15 | 26 |
| 2009 | 21 | 32 |
| 2010 | 28 | 30 |
| 2011 | 19 | 44 |
| 2012 | 24 | 39 |
| 2013 | 46 | 84 |
| 2014 | 59 | 104 |
| 2015 | 60 | 141 |
| 2016 | 138 | 141 |
| 2017 | 182 | 205 |
| 2018 | 205 | 200 |
| 2019 | 244 | 213 |
| 2020 | 193 | 175 |
| 2021 | 172 | 204 |
| 2022 | 180 | 207 |
| 2023 | 170 | 232 |
| 2024 | 179 | 236 |
| 2025 | 179 | 205 |
| 2026 | 124 | 168 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power supply apparatus6 Oct 2026US 12,756,294 B2Delta Electronics, Inc.
- PFM transition hysteresis scheme for peak-current mode buck converters6 Oct 2026US 12,756,308 B2Nexperia B. V.
- Power supply system6 Oct 2026US 12,756,330 B2Delta Electronics (Shanghai) Co., Ltd.
- Light-load recovery in a multi-level converter29 Sep 2026US 12,749,975 B2Murata Manufacturing Co., Ltd.
- Method for controlling a non-inverting buck boost DC-DC converter and corresponding converter29 Sep 2026US 12,749,977 B2STMicroelectronics International N. V.
- Power converter with switched capacitor voltage divider and multiphase dc-dc voltage regulator8 Oct 2026US 2026/0312484 A1The Trustees of Princeton University
- Power converter system and method for operating power converter system for reducing losses in dc link of the power converter system1 Oct 2026US 2026/0302919 A1
- Chopper circuit1 Oct 2026US 2026/0302929 A1Tamura Corporation
- Supply filter circuit1 Oct 2026US 2026/0302930 A1NXP USA, Inc.
- Rectifying and filtering circuit, electronic circuit, and electronic device1 Oct 2026US 2026/0302965 A1Huayuan Semiconductor (Shenzhen) Limited Company
Most cited
By later US patents
- Method of reducing leakage current in power supply systems254US 6,611,441 B2Canon Kabushiki Kaisha · 2003
- Inverter ripple regulator199US 4,161,771 AGulton Industries, Inc. · 1979
- Anti-ripple circuit199US 4,710,861 A1987
- Transformer coupled pard bucker for DC power supplies191US 4,667,279 AHewlett-Packard Company · 1987
- Active ripple reduction switched mode power supplies131US 7,233,130 B1RF Micro Devices, Inc. · 2007